SSL/TLS Certificate Lookup

Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted

SSL/TLS Certificate for csu-kronach.de

Self-signed
Issued by (CA)
csu-kronach.de.df-327884.dummy
Subject
csu-kronach.de.df-327884.dummy
Valid from
Oct 12, 2025
Valid until
Oct 12, 2026 (33 days remaining)
Public key
RSA 2048-bit
Serial
7DD21F61
SHA-256 fingerprint
CE:16:90:36:0C:20:93:1B:7D:34:FD:C6:0E:8B:36:5F:25:1B:43:F8:78:19:8F:87:2B:7F:69:63:0D:F2:C8:70
Chain
csu-kronach.de.df-327884.dummy
Subject Alternative Names (11)
autodiscover.csu-kronach.de, cpanel.csu-kronach.de, cpcalendars.csu-kronach.de, cpcontacts.csu-kronach.de, csu-kronach.de, csu-kronach.de.df-327884.dummy, mail.csu-kronach.de, webdisk.csu-kronach.de, webmail.csu-kronach.de, www.csu-kronach.de, www.csu-kronach.de.df-327884.dummy

Certificate Authority Authorization (CAA)

No CAA policy is published for this domain — any certificate authority may issue for it.

Never get surprised by csu-kronach.de's certificate expiring

This is today's certificate. Turn on monitoring and we'll watch csu-kronach.de continuously, notifying you the moment anything moves across all three signals:

Uptime

We visit the site from multiple regions worldwide and email you within minutes if it goes down, with a per-region breakdown so a real outage stands out from a regional blip.

DNS changes

We watch NS, MX, CAA, DNSSEC, CNAME and A/AAAA records, and identify the host, network, and ASN behind them, so a real migration or hijack stands out from routine noise.

TLS certificate

We warn you 30, 14, 7, and 1 days before it expires, and flag it if the issuing authority changes or the certificate is unexpectedly replaced.

Monitor this certificate free

Free for your first domain: uptime, DNS, and certificate together. No credit card.